diff --git a/core/modern/modern.factor b/core/modern/modern.factor
index 0986406c4d..363aeb8be4 100644
--- a/core/modern/modern.factor
+++ b/core/modern/modern.factor
@@ -7,7 +7,7 @@ make math math.order modern.lexer modern.paths modern.slices
 multiline namespaces quotations sequences sequences.extras
 shuffle splitting splitting.extras splitting.monotonic strings
 unicode ;
-in: modern
+IN: modern
 
 COMPILE<
 ! Base rules, everything should have a generator macro
diff --git a/core/modern/out/out.factor b/core/modern/out/out.factor
index bc71ae3d98..894dd7abe9 100644
--- a/core/modern/out/out.factor
+++ b/core/modern/out/out.factor
@@ -6,7 +6,7 @@ io.files io.streams.string kernel modern modern.paths
 modern.slices multiline namespaces prettyprint sequences
 sequences.extras sets splitting splitting.monotonic strings
 unicode ;
-in: modern.out
+IN: modern.out
 
 SYMBOL: last-slice